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source/decompiled/de/maxhenkel/voicechat/concentus/SumSqrShift.java

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+/*
+ * Decompiled with CFR 0.152.
+ */
+package de.maxhenkel.voicechat.concentus;
+
+import de.maxhenkel.voicechat.concentus.BoxedValueInt;
+import de.maxhenkel.voicechat.concentus.Inlines;
+
+class SumSqrShift {
+    SumSqrShift() {
+    }
+
+    static void silk_sum_sqr_shift(BoxedValueInt energy, BoxedValueInt shift, short[] x, int x_ptr, int len) {
+        int nrg_tmp;
+        int i;
+        int nrg = 0;
+        int shft = 0;
+        --len;
+        for (i = 0; i < len; i += 2) {
+            nrg = Inlines.silk_SMLABB_ovflw(nrg, x[x_ptr + i], x[x_ptr + i]);
+            if ((nrg = Inlines.silk_SMLABB_ovflw(nrg, x[x_ptr + i + 1], x[x_ptr + i + 1])) >= 0) continue;
+            nrg = (int)Inlines.silk_RSHIFT_uint(nrg, 2);
+            shft = 2;
+            i += 2;
+            break;
+        }
+        while (i < len) {
+            nrg_tmp = Inlines.silk_SMULBB(x[x_ptr + i], x[x_ptr + i]);
+            if ((nrg = (int)Inlines.silk_ADD_RSHIFT_uint(nrg, nrg_tmp = Inlines.silk_SMLABB_ovflw(nrg_tmp, x[x_ptr + i + 1], x[x_ptr + i + 1]), shft)) < 0) {
+                nrg = (int)Inlines.silk_RSHIFT_uint(nrg, 2);
+                shft += 2;
+            }
+            i += 2;
+        }
+        if (i == len) {
+            nrg_tmp = Inlines.silk_SMULBB(x[x_ptr + i], x[x_ptr + i]);
+            nrg = (int)Inlines.silk_ADD_RSHIFT_uint(nrg, nrg_tmp, shft);
+        }
+        if ((nrg & 0xC0000000) != 0) {
+            nrg = (int)Inlines.silk_RSHIFT_uint(nrg, 2);
+            shft += 2;
+        }
+        shift.Val = shft;
+        energy.Val = nrg;
+    }
+
+    static void silk_sum_sqr_shift(BoxedValueInt energy, BoxedValueInt shift, short[] x, int len) {
+        int nrg_tmp;
+        int i;
+        int nrg = 0;
+        int shft = 0;
+        --len;
+        for (i = 0; i < len; i += 2) {
+            nrg = Inlines.silk_SMLABB_ovflw(nrg, x[i], x[i]);
+            if ((nrg = Inlines.silk_SMLABB_ovflw(nrg, x[i + 1], x[i + 1])) >= 0) continue;
+            nrg = (int)Inlines.silk_RSHIFT_uint(nrg, 2);
+            shft = 2;
+            i += 2;
+            break;
+        }
+        while (i < len) {
+            nrg_tmp = Inlines.silk_SMULBB(x[i], x[i]);
+            if ((nrg = (int)Inlines.silk_ADD_RSHIFT_uint(nrg, nrg_tmp = Inlines.silk_SMLABB_ovflw(nrg_tmp, x[i + 1], x[i + 1]), shft)) < 0) {
+                nrg = (int)Inlines.silk_RSHIFT_uint(nrg, 2);
+                shft += 2;
+            }
+            i += 2;
+        }
+        if (i == len) {
+            nrg_tmp = Inlines.silk_SMULBB(x[i], x[i]);
+            nrg = (int)Inlines.silk_ADD_RSHIFT_uint(nrg, nrg_tmp, shft);
+        }
+        if ((nrg & 0xC0000000) != 0) {
+            nrg = (int)Inlines.silk_RSHIFT_uint(nrg, 2);
+            shft += 2;
+        }
+        shift.Val = shft;
+        energy.Val = nrg;
+    }
+}
+